From patchwork Mon May 5 00:02:48 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yuyang Du X-Patchwork-Id: 4112201 Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id E44A19F1E1 for ; Mon, 5 May 2014 08:09:29 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6FCCD2040F for ; Mon, 5 May 2014 08:09:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D49AA20411 for ; Mon, 5 May 2014 08:09:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755379AbaEEIJK (ORCPT ); Mon, 5 May 2014 04:09:10 -0400 Received: from mga01.intel.com ([192.55.52.88]:46110 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755346AbaEEIJA (ORCPT ); Mon, 5 May 2014 04:09:00 -0400 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP; 05 May 2014 01:09:00 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,986,1389772800"; d="scan'208";a="526078672" Received: from dalvikqa005-desktop.bj.intel.com ([10.238.151.105]) by fmsmga001.fm.intel.com with ESMTP; 05 May 2014 01:08:56 -0700 From: Yuyang Du To: mingo@redhat.com, peterz@infradead.org, rafael.j.wysocki@intel.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: arjan.van.de.ven@intel.com, len.brown@intel.com, alan.cox@intel.com, mark.gross@intel.com, morten.rasmussen@arm.com, vincent.guittot@linaro.org, rajeev.d.muralidhar@intel.com, vishwesh.m.rudramuni@intel.com, nicole.chalhoub@intel.com, ajaya.durg@intel.com, harinarayanan.seshadri@intel.com, yuyang.du@intel.com Subject: [RFC PATCH 08/12 v1] Intercept wakeup/fork/exec balance Date: Mon, 5 May 2014 08:02:48 +0800 Message-Id: <1399248172-13871-9-git-send-email-yuyang.du@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1399248172-13871-1-git-send-email-yuyang.du@intel.com> References: <1399248172-13871-1-git-send-email-yuyang.du@intel.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-6.0 required=5.0 tests=BAYES_00, DATE_IN_PAST_06_12, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Yuyang Du --- kernel/sched/fair.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index e7153ff..65f1651 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -4365,9 +4365,16 @@ static int select_idle_sibling(struct task_struct *p, int target) struct sched_domain *sd; struct sched_group *sg; int i = task_cpu(p); +#ifdef CONFIG_WORKLOAD_CONSOLIDATION + int ret; + ret = workload_consolidation_wakeup(i, target); + if (ret < nr_cpu_ids) + return ret; +#else if (idle_cpu(target)) return target; +#endif /* * If the prevous cpu is cache affine and idle, don't be stupid. @@ -4460,7 +4467,7 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_f } while (sd) { - struct sched_group *group; + struct sched_group *group = NULL; int weight; if (!(sd->flags & sd_flag)) { @@ -4468,6 +4475,12 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_f continue; } +#ifdef CONFIG_WORKLOAD_CONSOLIDATION + if (sd->flags & SD_ASYM_CONCURRENCY) + group = workload_consolidation_find_group(sd, p, cpu); + + if (!group) +#endif group = find_idlest_group(sd, p, cpu, sd_flag); if (!group) { sd = sd->child;